Useful life of oil and natural gas properties.

No definition available.

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- Definition

The percent change in sales price per unit of oil and gas produced.

+ References

No definition available.

+ Details

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- Definition

Proved oil and gas properties, gross, carried under the full cost method.

+ References

No definition available.

+ Details

Name:	krp_ProvedOilAndGasPropertyFullCostMethodGross
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Unproved oil and gas properties, gross, carried under the full cost method.

+ References

No definition available.

+ Details

Name:	krp_UnprovedOilAndGasPropertyFullCostMethodGross
Namespace Prefix:	krp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sales price per unit of oil and gas produced.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204
-Paragraph (b)
-Subparagraph (1)

+ Details

Name:	srt_AverageSalesPrices
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Period Type:	duration

- Definition

The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 35
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466

+ Details

Name:	us-gaap_ImpairmentOfOilAndGasProperties
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Balance Type:	debit
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- Definition

Depletion of oil and gas property carried under the full cost method.

+ References

No definition available.

+ Details

Name:	us-gaap_OilAndGasPropertyFullCostMethodDepletion
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Oil and gas properties, net of depletion, carried under the full cost method.

+ References

No definition available.

+ Details

Name:	us-gaap_OilAndGasPropertyFullCostMethodNet
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Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_EnergyAxis=srt_OilReservesMember
Namespace Prefix:
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- Details

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OIL AND NATURAL GAS PROPERTIES (Details)	3 Months Ended		9 Months Ended		12 Months Ended
OIL AND NATURAL GAS PROPERTIES (Details)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) $ / bbl	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) $ / bbl
Oil and natural gas properties
Proved properties	$ 688,328,675		$ 688,328,675		$ 538,290,590
Unevaluated properties	299,613,448		299,613,448		280,304,353
Less: accumulated depreciation, depletion, and impairment	(211,242,100)		(211,242,100)		(107,779,453)
Total oil and natural gas properties, net	776,700,023		$ 776,700,023		$ 710,815,490
Useful life			5 years
Impairment of oil and natural gas properties	$ 34,880,071	$ 0	$ 65,828,980	$ 54,753,444
Crude Oil and Condensate
Oil and natural gas properties
Average sales prices \| $ / bbl			57.77		65.56
Average sales price change (in percent)			(11.90%)
Natural Gas
Oil and natural gas properties
Average sales prices \| $ / bbl			2.87		3.10
Average sales price change (in percent)			(7.40%)